Last seen on the 2015 watch inspired by Vasco da Gama, the same concept sans tourbillon with cylindrical balance spring returns on the SIHH 2018 Montblanc 1858 Geosphere WorldTime.
The 15 year old Omega Seamaster Aqua Terra collection gets both a design and calibre update while the Bienne manufacture also adds a new complication - Worldtimer - to the series
